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    <title>Document</title>
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  <body>
    <button>houdunren.com</button>
    <script>
      let dom = {
        site: "houdunren",
        bind: function () {
          const button = document.querySelector("button");
          button.addEventListener("click", (event) => {
            console.log(this);
            console.log(event);
          });
        },
      };
      dom.bind();
    </script>
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